GB1406981A - Cleaning of sewage sludge systems - Google Patents

Cleaning of sewage sludge systems

Info

Publication number
GB1406981A
GB1406981A GB1684273A GB1684273A GB1406981A GB 1406981 A GB1406981 A GB 1406981A GB 1684273 A GB1684273 A GB 1684273A GB 1684273 A GB1684273 A GB 1684273A GB 1406981 A GB1406981 A GB 1406981A
Authority
GB
United Kingdom
Prior art keywords
heat exchanger
sludge
valve
cleaning
april
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1684273A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STWB Inc
Original Assignee
Sterling Drug Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sterling Drug Inc filed Critical Sterling Drug Inc
Publication of GB1406981A publication Critical patent/GB1406981A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/06—Treatment of sludge; Devices therefor by oxidation
    • C02F11/08—Wet air oxidation

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

1406981 Cleaning sludge conditioning plant STERLING DRUG Inc 9 April 1973 [24 April 1972] 16842/73 Addition to 1351322 Heading C1C [Also in Division F2] Sludge blockages in the heat exchanger of a sewage sludge conditioning system are removed by a flow of cold water countercurrent to the usual direction of sludge flow. As shown, sludge normally passes sequentially from pump 12 to tubes 14a of heat exchanger 14, conditioning reactor 16 (e.g. wet air oxidizer), shells 14b of heat exchanger 14, vapour separator 18 and tank 20. To cleanse the heat exchanger, the sludge source is cut off and the reactor 16 isolated by the appropriate valves shown, then water is pumped by pump 12 to valve 42A, thence to heat exchanger shells 14b, and is then either discharged through valve 42C or is passed through heat exchanger tubes 14a and discharged through valve 42D.
GB1684273A 1972-04-24 1973-04-09 Cleaning of sewage sludge systems Expired GB1406981A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24715672A 1972-04-24 1972-04-24

Publications (1)

Publication Number Publication Date
GB1406981A true GB1406981A (en) 1975-09-24

Family

ID=22933802

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1684273A Expired GB1406981A (en) 1972-04-24 1973-04-09 Cleaning of sewage sludge systems

Country Status (5)

Country Link
JP (1) JPS5836638B2 (en)
CA (1) CA975253A (en)
CH (1) CH568248A5 (en)
GB (1) GB1406981A (en)
ZA (1) ZA732485B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3565972B2 (en) 1996-01-31 2004-09-15 新日本石油化学株式会社 Wet oxidation method of waste soda
JP3553720B2 (en) 1996-01-31 2004-08-11 新日本石油化学株式会社 Wet oxidation method

Also Published As

Publication number Publication date
JPS5836638B2 (en) 1983-08-10
CH568248A5 (en) 1975-10-31
ZA732485B (en) 1974-02-27
AU5451473A (en) 1974-10-17
JPS4954269A (en) 1974-05-27
CA975253A (en) 1975-09-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee